Documents / Official release
This U.S. Department of War file, undated, holds checklist summaries of incidents 1 to 100 of unidentified flying objects reported in 1947 and early 1948. The first entries cover sightings of silver discs and spheres by officers and staff at Muroc Army Air Field on 7 and 8 July 1947. Next come the Portland, Oregon police reports of 4 July, a United Air Lines crew near Emmett, Idaho, and a set of 30 December flame and explosion reports from California and Nevada. The file ends with two Finnish sightings.
From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.
“Anderson”4 pages
Read from the scan by GLM-OCR; expect the odd misread word.
## RESTRICTED CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incident # 1. Date 3 Jan 1948 2. Time N/S 3. Location Military Attache, Helsinki, Finland (official source of information) 4. Name of observer Helsinki Press, 10th Jan 48. Finland (USMILATTACHE AMLEGATION Helsinki Finland sgd Burrill) 5. Occupation of observer N/S 6. Address of observer Helsinki, Finland 7. Place of observation Vagsa, Finland 8. Number of objects One (1) 9. Distance of object from observer N/S 10. Timo in sight 30 seconds 11. Altitude N/S 12. Speed N/S 13. Direction of flight west to east 14. Tactics N/S 15. Sound N/S 16. Size N/S 17. Color Shining 18. Shape N/S 19. Odor detected N/S 20. Apparent construction N/S 21. Exhaust trails Long tail 22. Weather conditions N/S 23. Effect on clouds N/S 24. Sketches or photographs None 25. Manner of disappearance N/S 26. Romarks: Helsinki press 10th January reported observation of light phenomena vicinity Vaasa 3rd January brightly shining object with long tail moved west to east visible for 30 seconds
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 209 pages are in the text index: search them above, or from the library's search.